Best Time to Fly MIA to DFW: On-Time Stats by Hour & Airline
Miami International → Dallas/Fort Worth International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 73.7% of Miami (MIA) to Dallas/Fort Worth (DFW) flights arrived on time (4,818 scheduled flights). That is 3.9 points below the national average of 77.6%.
Frontier Airlines was the most punctual of the 3 airlines on the route at 76.6%, while Spirit Airlines trailed at 60.7%.
February has been the best month (83% on time) and Sunday the weakest day of the week (68%).
2.6% of flights were cancelled, versus 1.8% nationally.
MIA to DFW on-time performance by airline
Last 12 months. Airlines with fewer than 30 completed flights are marked “limited data”.
| Airline | On time | Avg delay when late | Cancelled | Flights |
|---|---|---|---|---|
| Frontier Airlines | 76.6% | 76 min | 2.2% | 267 |
| American Airlines | 74.3% | 78 min | 2.6% | 4,303 |
| Spirit Airlines | 60.7% | 72 min | 3.2% | 248 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly MIA to DFW
On-time arrival % by scheduled departure hour (local time), 9,604 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 88.9% | 2.6% | 735 |
| 6am–7am | 88.2% | 1.1% | 706 |
| 7am–8am | 84.1% | 1.3% | 698 |
| 8am–9am | 82.9% | 1.2% | 642 |
| 9am–10am | 78.5% | 0.9% | 421 |
| 10am–11am | 75.0% | 2.5% | 316 |
| 11am–12pm | 78.7% | 1.3% | 626 |
| 12pm–1pm | 77.1% | 1.0% | 395 |
| 1pm–2pm | 69.8% | 2.5% | 446 |
| 2pm–3pm | 61.8% | 0.6% | 333 |
| 3pm–4pm | 63.9% | 1.6% | 768 |
| 4pm–5pm | 63.9% | 1.9% | 215 |
| 5pm–6pm | 60.8% | 2.1% | 777 |
| 6pm–7pm | 59.1% | 3.0% | 568 |
| 7pm–8pm | 61.6% | 3.8% | 686 |
| 8pm–9pm | 68.3% | 2.1% | 431 |
| 9pm–10pm | 72.9% | 4.1% | 660 |
| 10pm–11pm | 65.3% | 3.9% | 181 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on MIA to DFW
On-time arrivals during holiday periods compared with all other days, last 24 months.
| Period | On time | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Thanksgiving week (Tue before to Mon after) | 76.3% | +1.8 pts | 0.0% | 195 |
| Christmas & New Year (Dec 20 - Jan 3) | 76.0% | +1.5 pts | 1.9% | 369 |
| Summer peak (Jun 15 - Aug 15) | 66.5% | -8.1 pts | 1.8% | 1,651 |
| All other days | 74.5% | — | 2.2% | 7,389 |
Monthly on-time trend
On-time arrival % each month, with the 12-month US average for reference.
What causes delays on this route
Share of reported delay minutes, last 12 months (BTS cause categories).